How do you graph f(x)=−2⋅3√x?

1 Answer
Roy Ø.
May 14, 2018

Use Excel to calculate a number of points, (x,−6√x), and plot them on a graph paper.

Explanation:

First we note that x must be positive for us to be able to graph it.

We have f(x)=−2⋅3√x=−6√x

Using for instance Geogebra we get:
enter image source here

If we have to plot it manually on a graph paper, we first need to calculate some points which the graph should go through. The easiest would be to use Excel, where we have the x values in one column and let Excel calculate −6√x in another column, like this:

enter image source here

Then we plot the values in our praph paper and draw a nice line through the points that we have ploted.

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